/ Dictionary / Index C Columba: Meaning and Definition of Find definitions for: Co•lum•ba Pronunciation: (ku-lum'bu), [key] — gen. -bae a.d. 521–597, Irish missionary in Scotland. the Dove, or Noah's Dove, a southern constellation between Caelum and Canis Major. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: columba (Thesaurus) Colum columbarium Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language